Improvement in printers  chases



@einen tang 'gettati Letters Patent No. 76,722, dated April 14, 1868.

IMPROVEMENT IN PRINTERS GBASES1 @Ligt Stiebel referat tu it tigen tttttts attut mit mating artt rit tigt sans,

TO ALL WHOM Il MAY OONCERN: I l Y Be it known that I, ROBERT DICK, of the city of Buffalo, in the county of-Erie, and State of New York,

have invented an Improvement in the Method of Locking up Forms, the object being to meet and satisfythree wants, which have uneeasingly forced themselves on the attention of printers as important desiderata:

First.. The means of locking as large a form as 'a chase will hold Without having anything between it and the type, and thicker than a long primer reglet, and, with the chase thus-completely filled, to lock it up as quickly, easily, and permanentlylas in the common way, with the necessarily much larger chase, demanding, in

t/urn, a larger press.

Second. The means of locking up forms so methodically as to obviate the necessity of delay in selecting qnoins, and all diiiiculty in getting them out when driven hard and tight into the corner of the chase.

Third. The means of locking up forms of type without ever having the chase raised from the stone by the I process of driving the quoins.

That all interested may know how my invention doth compass these objects, and, if skilled in art, achieve them, with all the accruing b'enets, I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawing and representations, forming part of' this specifi cation` f Let Figure I, in the drawing, represent a printers form, looked and ready for the pressman, in which AAA represent Mthe chase, and the whole of the enclosed blocked plates and wooden furniture the same area of set type, with nothing whatever between it and the iron chase except the long primer iron reglets B B and B B along its side and foot, the type and these t-Wo reglets completely filling up the chase when the form is not locked, in which ease the quoins figg q lie loose in pairs, head to head, in the deepest part of the niches E E E, formed in the chase along its side and foot. In locking up the form, these thin iron quoins are driven in the direction of their sharp ends, wedging the iron refflets against the type till the mass is so tightly locked together that no type can move. i

In Figure 2, on the drawing, representing one oi' the iron wedges or quoins, let H H represent the wedge proper, and F F a flange formed on its upper edge, wide enough to suspend the quoin on the upper edge of the chase or iron reglet, but not wider than the eighth of an inch, the thickness of the iron reglet, lest the flange should touch the type in the process of locking up the form. This ange necessarily prevents the quoin, how* ever carelessly driven, from ever touching the stone, so as to raise or Warp the chase; and further, this ange being always, and at both ends, perfectly accessible to the shooting-stick, and being one body with the quoin, it is plain that driving the ange drives the quoin, and hence by it the quoin can at any time he instantly driven forward, and just as quickly bach, even when driven tight and hard into the corner of the chase.

It is nov.7 manifest that, give a printer a form of any size, and one of my improved chases, only an eighth of an inch each way larger than the form, and, with the chase and the form, the proper complement of iron reglet and of my hanged quoins, and he can, without a moment lost in selecting Vquoins, lock up every such form. most methodically, without once warping a chase by the violent contact of quoin and stone. It the chase given him be a common one, with all its sides rectilinear, it must be, each way, a quarter inch larger than the form; then, with the complement Oi' iron reglet, as before, and a double quantity of my flanged quoins, 0ne= half of them to be pressed down with the lingers between the iron reglet and the chase, so as to form inclined planes, to represent those formed by the niches in my improved chase; then let the other half of the ilanged iron quoins be pressed in like manner, and so that the thin end of each one shall overlap a thin end of one of the others, and it is plain that, with the shooting-stiel;, the printer can complete the locking up ofthe form, in every such case, by this second mode, with results altogether similar to the first; to insure which, my ,iron

quoins are flanged only on one side, and always on the same side, so as to admit of theirhefing driven past each other when reversed. This double use OIn my llanged metallic quoin is shown at K K K K, in iig. l on the drawing.

What I claim os my invention, and wish to secure by Letters Patent, is

1. The construction and use of o. suicient number of suitably-inclined planes, formed along the side and foot of otherwise comnlon chases, employed in comhinntion with thin wedges of @ny suitnblesubstoncc, operai.` ing between these inclined planes and a. reglet of suitable materiel, so as to lock up a. form in an eighth of an inch of chase `room as easily and as efficiently as `in two inches of chase room, all constructed and operating in combination, substantially ns set'forth. i

2. `The flanged quoin or wedge, constructed and operated substantially as set` forth.

ROBERT DICK.

Witnesses:

EDWD. C. Hnw'lis, W. T. CHAMBERLAIN. 

